Area Code +52-444-(1010000...1012999) located in San Luis Potosí, San Luis (SLP), more detail is as below. Place International Dialing Code : 52 International Prefix : 00 National Prefix : 01 National Destination Code : 444 Subscriber Number From : 1010000 Subscriber Number To : 1012999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : TELEFONOS DE MEXICO, S.A.B. DE C.V. Click here to buy Mexico Area Code Database Other Information Language Code : es (Spanish) Country Number : 484 (Mexico) Country Code : MX (Mexico) Region Code : SLP Region Name : San Luis City : San Luis Potosí Timezone : America/Mexico_City Coordinated Universal Time : -06:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 22.1500 Longitude : -100.9800 ‹ previous : +52-444-(1008360...1009999) next › : +52-444-(1013000...1013299) Dialling Instructions For trunk calls: 1 444 1010000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 52 444 1010000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 1010000 ~ 1012999 (Count: 3,000) Example: +52-444-1010000 / 0052-444-1010000 (01444-1010000 / 01-444-1010000) +52-444-1010001 / 0052-444-1010001 (01444-1010001 / 01-444-1010001) +52-444-1010002 / 0052-444-1010002 (01444-1010002 / 01-444-1010002) +52-444-1010003 / 0052-444-1010003 (01444-1010003 / 01-444-1010003) +52-444-1010004 / 0052-444-1010004 (01444-1010004 / 01-444-1010004) ...+52-444-xxxxxxx / 0052-444-xxxxxxx (01444-xxxxxxx / 01-444-xxxxxxx) ...+52-444-1012995 / 0052-444-1012995 (01444-1012995 / 01-444-1012995) +52-444-1012996 / 0052-444-1012996 (01444-1012996 / 01-444-1012996) +52-444-1012997 / 0052-444-1012997 (01444-1012997 / 01-444-1012997) +52-444-1012998 / 0052-444-1012998 (01444-1012998 / 01-444-1012998) +52-444-1012999 / 0052-444-1012999 (01444-1012999 / 01-444-1012999)